Aphonia
| Classification according to ICD-10 | |
|---|---|
| R49.1 | Aphonia |
| F44.4 | Dissociative movement disorder |
| ICD-10 online (WHO version 2019) | |
Aphonia (formed from the Greek άφωνια <α “not” and φωνή, phone , “voice”) or voicelessness denotes severe disorders of sound formation ( phonation ) up to loss of voice . A distinction is made between organic and psychogenic causes.
Causes, symptoms
In the case of organically caused functional impairment of the vocal folds , changes in the larynx (e.g. after operations) or paralysis restrict the function to such an extent that only insufficient vocal sound can be produced.
The disorder known as dissociative (also psychogenic ) aphonia has no organic basis. For this, z. B. an emotional cause or a neurotic conflict processing (with conversion-hysterical symptom formation) responsible.
The functional limitation is divided into two forms, each of which has different functional disorders as the cause and thus does not allow normal vocalization:
- Hyperfunctional form: compression of the vocal folds,
- Hypofunctional form: the vocal folds do not come together.
therapy
Therapeutically, organic aphonia is treated by eliminating the changes in the context of phonosurgery , usually with supplementary voice therapy, while dissociative dysphonia requires a psychotherapeutic procedure to deal with the underlying disorder in parallel with voice therapy .
literature
- Jürgen Wendler, Wolfgang Seidner, Ulrich Eysholdt: Textbook of Phoniatry and Pedaudiology . 4th edition. Thieme-Verlag, Stuttgart 2005, ISBN 3-13-102294-9 .
- Christian von Deuster: Aphonia. In: Werner E. Gerabek , Bernhard D. Haage, Gundolf Keil , Wolfgang Wegner (eds.): Enzyklopädie Medizingeschichte. De Gruyter, Berlin / New York 2005, ISBN 3-11-015714-4 , p. 75.
